Napkin holder



FIG. 1 is a perspective view of a napkin holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof, the opposite side elevation view being identical thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a front elevation view thereof, the rear elevation view being identical thereof. 

CLAIM The ornamental design for a napkin holder, as shown and described. 